Thread cutting and clamping mechanism for sewing-machines.



.J; KIBWIGZ. THREAD CUTTING AND GLAMPING MECHANISM FOR SEWING MACHINES.

Patented Mar. 15; 1910.

APPLICATION FILED JAN. 11, 1909.

3 SHEETS-SHEET 1.

J.- KIBWIGZ. THREAD CUTTING AND OLAMPING MECHANISM FOR SEWING MACHINES.

I APPLICATION FILED JAN. 11, 1909- 952,01 I Patented Mar. 15, 1910. a SHEETS-SHEET}.

J. KIEWIGZ. THREAD CUTTING AND OLAMPING mnommsm r011 szwme muamns,

APILIOATION FILED JAHJI, 1909. 1 952,010. atented Mar. 15, 1910.

3 SHEETS-SHEET 3.

2 a 2 5 2% v, G w {NM m fi v M "r'lii/l'i/iiiiF/ZTITI."

- top planview otthe parts after the buttonhole has been: finished and the work una of the same parts but after the stitch-formstantially t e line 33, thread cutti'ng and clamping members after.

iglamped, but just before the final forward movement of the work to. place th e threads in position to be acted. upon by the cuttm an clamping mechanism; Fig. is a detai in plan of the thread-clamp with the movable cutting member oz'nitte the; clampbe-v ing in the position shown in Fig; 1 clamping thecut-threads; Fig. 7 is a .8 ar-view mechanism has begun its-movement'to.

stitch'another button-hole; Fig.'8 -is a se' arateplan view of the relative? mova le member of the thread-clamp ig plan View of'the relatively movable threadcutting'member and adj acen-t parts; Fig. is an' enlar ed view pa'rtl in section on sub}- ig. 1', showing the the threads have been clamped and out; Fig.

. 11 is a viewer such parts, at right angles 'to the; line 3.'=3, Fig. 1, butshowinghn full fyposition corresponding to-Fig. 7; Fig. 12 a togplanjview of theswingin earrier' onwhi], the thread-cutting an cfampingde lines their relative position corresponding to? Fig. 6, and in dotted'lines theinrelative 'Jvices are mounted Fig. 1-3 is a, r' spe'ctive detail of the end bf alat'eral .en tiansiomorf arm. forming aart ofthe'carrier with the cover late .or

is a transverse sectional detail on the line :15, 12, 16 is a similar .view on line 16-16, Fig. 12,. to more clearly .i us

ti'ate the construction.

;clamp, and Ttheir" serratedparts *m'," ,the

n throat-plate G whichsupports'the edges'ot the inaterial to be stitche work-cla' pand the vibrating clutch-d0 49, (the end thereofbeing-shown inFig. 1i

may be and are all substantially as. in the patents referred to-fand operate as'therein' set forth.

It will be understood that the stit'ch forr n- Ping mechanism, -including the needle d for the up'p'er or needle-thread, and the devices for-* controlling. the" under-threads (not shown) are mounted upon the traveling frame'aj and in practice are or may be of the no part ofomy present invention. v

. In accordance with my invention I mount construction shown'in said patents and form v i upon the stationary plate a ,at"one' side of the clam -meinbers' man elongated, flat car- Her 1 5 own separately in Figead removed; Figs- 14: .isf iihtand edge viewof'said carrier ex tenv 8 sion with the ead in place-thereon; Fig.;; 15,

crumedat its inner end at Qto swing upon the platen toward and from the path of. the throat-plate C, a stud-3 entering'a slot 4' in the carrier limiting'its swinging movement. A spring 5 acting upon the carrier tends to maintain it" in the position shown in Figs. 1 and 5 j the carrier having .f orm;ed. in it. a longitudinal, undercut. groove'orideway 6- in which. is'mounted' a longitudinally-slidable bar. 7 constituting aeont roller for the thread-cutting" and clampingdevices, a springfl attached to the 'o iterl-end of the 'carrierand .to the 'narerI -Iend' iof,,the con-' troller servingto movethe. latteii'fto-the' left, so F gs. 1, 2,4 and 5.

' At its inner end theoont lie: is provided with an upright pin. 9 in thepath of move inent ofa -finger. 10- fast 'onf'a part of the' -mo'vable frame11, it being-seen that the pin:

- 9 is beyond the denier-fulcrum 2, so that as the frame q-nioves'to the right," Fig; :1, the finger-10 will engage the pin jand'slide the: controller- 7 to the right, stretching spring* 8 and also causing. the carrier to swing outward in'to the'position shown in Fig. 4.

The spring ermits continued movement of the control er' after the carrier reaches the position-showninFig-i and'is stopped by t e stud 3, as will be manifest, such movegnent of the carrier compressing.'its.returnmg spring 5.

xnent 11 adapted to be engaged by a'= locking dog 12' pivoted at12*.on the-carrier and having. its tail connected by a sp'rin'g'. 13"'w'ith the carrier, the spring acting toswin g ;the dog {toward the. controller, so that when. the latter is retracted by 'the finger 10"in'to the position shown in Fig. 4 said dog will; en-

age the abutmentll andqhold the controller ocked inretracted position.

Anadju'stabletrip "14' is mounted oni the 7 tail of the-dog at such 'a 'height that it is-ilf the path of the finger -10, 'whenQthe frame -moves forward,.or' to the left, Figsigi and 5, sothatat a. certain point in such movement thetrip willbe'engage'd to swing the dog 12 away "from. the r 1 A cam-plate 15 is shown as fixed-1y secured by screws 16 'tothe controller near itsonteryj end, said plate having a cam-slot '17 j ma; anlzj extension 18,, the latter shown as eartenqieclmembers m -of the' v vork-clamp. .7 me camslot 17 receives a follower-stud--19' ectijmzj thi'e'ad en a'ging end of said" shank,'.see; Fig,

8, having an open- 5 21- threads and presenting. a. hook=ltke "extrem- 1.

ity 22 to' act upon the't-hr'e'ads, as will; be exhliped. the part 22 being in practice the "f Attaohed'to the controller 7 13n abut-- 'l. i

ab'utment,-f releasing cm.

. iio laterally. from said controller toward;:,.the

l'novable clamping member, per 86. The" 'C, and when the thread-clamp is open, Figs. shanlt20 crosses the-controller 7 beneath the 5 and 9, the upp'er and underthreads are cam-plate, in a recess 23, Fig. 2, in said conbrought into position to be clamped and. cut. troller, to permit reciprocating movement The work W, Figs. 10 and 11, extends 5 thereof, the'shank 20 bemg'slidably sup ort ver the thread-clamping and cutting de-- 0 ed and confined in hearings in a latent exvices, which are. located beneath the work tension or arm 24 of the carrier, clearly position so that they can act upon the. shown in Fig. 12. 'A uideway 24 is formed. threadsat the "'underside of the work, said in theupper face 0' the extension at the clamping and-cutting devices being above 10 right-hand side thereof, in which the shank the path of the 'throatplate'- G and operat- 75 20 slides at right angles tolthe path of moveing wholly independently of said throatment of the controller 7,:1nda cap-plate or" plate. head 25 is secured 'to' the end of the exten- Startin with the parts as shown in Fig. sionand overturned across the ideway 24", 1, with t e threads clamped and out, .the 15 as at 25 Figs. 12 and 151- 'Flieextension operation .is as follows;:-As the frame "a'so 24 isprovided with a 'not'ch200, Fig. I3, and movesto the 'rightthe tin er' ,10- engages the head is provided with an open recess 26 pin 9 and retracts the contrd er 7, swinging which registers with the edges 'of the V-.' the calrierl and its extensi n24 'outlward; shaped notch 200, above the same. us'shown in Fi 4, thed'o'g automatically 2 0 Theparallel edges 27 ,127" above and-.beengaging the 2il)i1tment-11-'and, locking the-1 '5 w, respectively, the..-path 0t the-movable .controller in retracted. osit-iQn. -;The eammember 22 of the thread clam'p' constitute plate 15 at the same time. actsfupon-ihg the relatively fixed member of such clam h nk. and 0' ensthe thr'ea'd clamp',' by and the edge 27 also serves as the; relative y movin the m'em er 22 away frombetweeir- 25 fixed member of the-thread-cutting device. the e es, 27, 27- .and the recess-i 21-'their'eo When the member22 is operated as will substantially registers with tlie recSS"2,

be de'scribed,"it engages the threads b'eneath' as shown in Figs. 4, 5 and '9. -At the'js'ame the work and drawsthem into the lower time the blade-carrier is swung on its corner of the-recess 26 and a ainst-the edges .j l Q n P 5 the blade 4 in here 30 27,, 27 clamping sueh thread stightly, while tive'position shown in. said figures. 95 the movablecuttirig member cooperates with. Referringto Fig. 4, it will be understood the upper edge 27 tosever the threads ft-hat after the controller has been retracted cleanly; a andloc ked the frame a will moveto the left,

The thread-clamp isclosed by a strong. togoomplete' the over-stitching of the second sp'ring28fixedly attachedatone Send? to the. 's'ide o f;the button-hole, and on such return .100 carrier 1 and havingits fi-ee-endjbear'ingI- movement the finger 10 moves to the left a against a pin 29 dependin".fr om the fshankawayfrom the pm 9. The spring 5 acts 20,-andthe clamp is opene :by.thecoi$pera:-' immediately to swing the carrier and parts ti n f th cam-slot '17.w'thzthe follower "thereon intolthe position shown in Fig. 5,; 19 when the controller 7 .isflretracted, as land'now' all isin readiness tor the clam inglos shown in Figs, 4 and 5. 4 1 and cutting of the threads. When the ut- Ablude-carrier' 30 is fulcrumed' at"31 ,on ,ton-hole has been barred the needle d rises, the carrier-extension. 24 above its head 25, Fig.3, leaving a 100 n", Fig. 3, formed by see Fig. 9, and has a prolongation 32 prothe-usual looper, an after the needle clears '45 vided' with'a-stud. 33 which'pivot'ally eon the work and the-latter has been released 110 nects it with-the extension-18 of the cam" by the work-clamp the frame a moves forplate 15, 's0 that asthe latter is. movedback Wards-bout 3/8 of an inch, movingthe-workand forth by the controller the .blade carrier with it and thereby bringing the sides of will be swung. on its fulcij'um '31. Said the loop a, the under-t read 14 and the blade carrier has a hook-shaped free end 30* purl-thread p into the open andregistering 11 Figs l, 4, 5 and 9, presenting a cutting recesses 21 and 26, in range of'the cutting blade 34 which is adapted to swingacross and clampin mechanism. Just as this'is ac the recess .26 and sweep overthe face of complished tie finger 10 strikes thetrip 14. the head25' and thereby'crossgjthe combined causing the dog 12 to release the controller cutting-blade andclam presented by the 7, the spring 8 instantly acting to slide the 4 upper.edge"27, revious y referred to- The controller to the left-into the position shown cutting action t us. efi'e'ctedis substantially, in Fig. 1, while the spring 28 acts. upon the that of v a air .of. shear-blades, as will be shank 20 to move it outward at right angles I apparent,- e threads being clamped before to the controller. The change in'the posithe cutting-is efi'ectekl. i tion of the cam-plate 15 allows the spring 125 The'positionpt the. carrier and its exten 28 to' move the threadclamping member 22 sion, shownin 'Figs. 1 and 4, brings the. toward and between'the' edges 27, 27?, thererecess "26. of. the carrier-extension.with-its by drawing the threads against andbetw'een' openinginto-position. at the outer=endbf said edges and; downin the-corner of the the ipath-iof movement of the-throat-plate recess 26, nipping or clamping such threads and tightly holding the same, while the blade-carrier 30 is-swnng around to bring ltho blade a-"ainst' the threads, between the'umlerside of the work and the topof the head 25. suid blade wiping across the fan-("- of the head and across the upper edge :51,"

cutting the threads with :14- shear-cut. The

' chunpmg and cutting is thus efl'ected'by. the

"time the; )arts again assume .the position shown in igs, l-and 10, and the clamping device retains its hold upon'the severed threads as the framed moves back into position to begin the stitching of the next button-hole, as indottsd lines Fig. 11, showing the clamped threads and throat-plate. Such movement of the frame a will not open the.

clamp asthe finger 10 will-not yet engage the pin 9 on 'the controller 7 so that the under threads are held automatically. until stitching begins, relieving the o erator of that duty: Manifestly the openm of the threa d-chunp and retraction of the blade 34,

leave the previously held threads free to drop out. of the clamping meaiis,:and the loop 11*" of the needle or upper thread can then drop out.- As these various threads arerier' 1 and having its free and extended beneath the head in a cut-away part 37- therein, extending to the back of the recess 26, a spring 38 tending to keep the arm in theposltion'shown in Figs. 1, 4 and 5.

The extremity ofthe arm is turned diagonally at 39 to form the clearer proper,,wh1ch is. practically a, thin flat blade "inserted be- I nd ra 'd P {.tw-"en the movable member 22 of the thread I clamp and the overhanging part ofthe heed 25,; 1c clearer-beingso shaped and' posi tinned-flint when swung on its pivotto the right,-Figs. 4, '5 and 9, it will, project into the-recess 26 and'thereby'push out;or clearaway any threads or iecesof thresrd'which muy be sticking tot e and cutting 1nember"27.-

"I have provided. means to. automatically y 'vibrate the c1enrer -whenthe clamp releases thc threads; 7and ,.to this end-- the bent irni 35 has an eXteI'iSioi 'AO project ing under the carrieiinto thepntfh of movement of the upturned end 41- ofla vibrator, shown as ug-lever 42 fulcrumed-ht 43 on the front part of the plate a and having its rear end provided with a, cum-lump 44, Figwll This-cam-lump is at times acted upon and vibrated by the vibrating clutch-dog 49 01' part or member of thebutton-hole stitching-- 55 machine) and when the carrier 1 is swung 'said controller. g v

The thread-clamping. member 22 1x1 6. the I no. ing and cutting members, respectively, in-f .asniuch-as they are movable with relation to the combined clampin combined iclamping anechan'ism located :beneatih -tion--a.nd 'above. and independent of the outward into the position shown in Fig. 4 the extension is engqged by the end 41 of the vibrator, which at such time is in motion, and thereby-theclem'er-arm 35 and clearer 3!) are given a rapid oscillation on the fulcrum 36. At this time the thread clamp and cutters-re open, seeiFig. 5, and as the clenr'er 3S) rapidly oscillates into and out of the recess 26 any. threads which rug-y be sticking in therecess or in the notch- QQQgwill. be removed therefrom. When the-iciiiirier swings biickto the position shown 1 mid -t the extension 40 is withdrawn, rdin cooperation with the vibrator 42 -i1-nd the s wing 38 drawsthe clearer buck out-bf] t me my, o that it cannot interfere with. theoperation of clamping-- -and cuttingthe" threads. From the foregoing description,' in connection with the drawings, it 'will be clear that: not only. is the thread-clampin and cutting mechanism mounted'on and odily movable-with the swinging carrier and .located beneath the work osition, but the controller for governing e operation of said' mechanism is also mounted onthe carrier, as is thethreiid-clearer, that bythe removal of the carrier-fulcrum- 2 the entiresppnretus forming the subj ect-imattffifof m present 'inventioncan be removed tstijjpli cation to a'button-hol 'stitching inhchine'of thekharacter hereinbefore ifefernedl to is, in consequence, readily fiectejd', the :e'dditio'n of the retracting finger 10, ciujrier spring 5;

and vibrator 42 be ng matters o f.'sma11 mota chment. The" "finger 10 not ohly :rtraots the controller to locking'pdsition,whereby the various parts'areset in medium the controller by tripping the dog 12, so that said-finger may betermed an actuator for cutting bludefi' are termed movable clampand cutting member," herein shown as the e Various chan es or modifications in different-det-ails 0 :construction imd arrangem."

ment may be made by those skilled in the art without departing from the spiritand -'scope of my inventionas' set forth' nthe ap pended claims.

' fully i described my 'invention,

Hamlin 'what I c aim as new and desire to secure by:

Letters Patent is bodily movable -stitch-formin'g mechanism,

, ibo ment and simple usgto construction and at e 27 of the recess 26, g

, y 125, .1 In a; sewing-machine pr vided -with.

throat-plate, for engaging the upperand under threads/immediately {beneath and close to the work and clamping and cutting -such threads independently of the throatplate,'and meansactuated by engagement with the bodil movable stitch-forming mechanism to' e ect automatically the actuation of said clamping and cutting mechamsm.

2. In a button-hole stitching machine provided with bodily movable stitch-forming mechanism including a needle and 'a throat-plate movable back and forth, a car-- rier independent of the throat-plate thread-' clamping and cutting devices mounted on said carrier and located beneath the work position, means'controlled by bodilymovement -of the stitch-forming mechanism to move said carrier and the clamping and cutting devices thereo'n beneath theworkinto and out vof position to coiiperate with the upper and under threads, and means also mounted on the carrier to actuate'automatically the clamping and cutting devices when positioned adjacent the throat-plateby movement of the carrier to operative position, th

clamp and cut the threads independently of the throat-plate and beneath and immediately adjacent the work.

3. In a 'buttonhole stitching machine provided with a bodily movable stitch form- 111g mechanism, including a throat-plate,

in combination, -devices located beneaththe work position and above the path 'of'the throat-plate to clamp and cut the upperand under threads independently of the throat plate and beneath and immediately adjacent the work, and means directly engaged and controlled by bodily movement of the stitchforming mechanism to move said devices into and outof operative position and to effect the clamping and cutting movement thcreofwlien in operative position.

n In a button-hole stitching machine provided with stitch-forming mechanism bodily movable with relation to' the work, in combination, devices located beneath the work position to clamp and cut the upper and under threads beneath and immediately adjacent the work, 'means, including a swinging carrier and a controller longitudinally movable thereon, operated by movementof said stitch-forming mechanism in one direction to position said devices for e06 'er-ation with the threads, and means, inclu mg a locking dog for. the controller, controlled by movement of said mechanism in the opposite direction, to release the do fromengagement with the controller an thereby cause said devices to clamp andcut the threads after the formation of a buttonhole is completed. I

5. In a button-hole stitching machine hav ing bodily movable stitch-forming mechanism, clamping and cutting devices located beneath the work-position, to act upon the threads. beneath the work, a swinging carrier on which said devices are mounted, means actuated by bodily movement of said mechanism to swing the carrier into and out of operative position, a device to lock automatically said carrier when swung out of operative position, and means the operation of which is governed by bodily movement of the stitch-forming mechanism to release the carrier from the'control of the locking device and to effect the operation of the thread-clamping and cutting devices.

6. Ina buttonhole stitching machine having bodily movable, stitcheforming mechanism, a swinging carrier movable beneath the work position and having a head provided with a combined thread-clamping and cutting member and a thread-receivlng re- I cess, movable clamping and cutting members mounted on saidcarr er to cooperate with said combined clampingand cut-ting members, a controller longitudinally movable on said carrier, operating connections between the controller and the movable clamping and cutting, members, means to retract the controller by bodily movement of the stitch-forming mechanism, to thereby open the clamping and cutting devices, and

spring-actuated means to effect opposite movement of the controller 'and thereby cause the upper and under threads to be clamped and cut beneaththe work, swin ing movement'of. the carrier being controlled by movement of the stitch-forming mechanism.

7. In 'a sewing machine of the class described, devices locat'ed beneaththe work position to clamp and cut the upper and under breads beneath the work, means to efiectt-e operation of said devices, and a clearer to remove loose threads from the clam ing device when the same is open.

"SJ n a sewing machine of the class described, device's located beneath the work position to clamp and-cut the upper and under threads beneath thework, means to a clearer to remove loose threads'from the clamping device when open, and means to vibrate said clearer at such time.

9. In a button-hole stitclnngv machine provided with bodily movable stitch-fornnng mechanism, a carrier located beneath the work position and having a thrcad-receivm recess and a combined thread clamping-an cutting member formingone side of such recess, a movable cutting blade pivoted on the carrier, a clamping member slidably mountedon the carrier, a controller operatively connected-with said blade and clamping member, tobring them into coiiperation with the combined member and retract them therefrom, a device to lock the controller when retracted to open theclamping by movement'ofthe stitch-forming niech- .the' upper and un er threads independently away from operative position while still.

bodily reciprocat ng and cutting members for the reception 'of-l and-to effect unlocking of the controller after completion of -.the.butto n-hole, and 'sprin and .t lore-by efi'ect clamping and cutting of 'the threads.

'niatieally, controlled by bodily movement of' -{3otraction in Letters "Patent No. 952,010.

the threads, means to retract the controller anism' during the stitching of abutton-hole .to return the unlocked controller 10. In n button-hole stitching mchine ,rov'lde'd with bodily movable mechanism lncluding a throat-plate, to stitch a buttonhole and move the work forward after comletion of the button-hole, devices located eneath the 'workoosit-ion tov clamp and out of the throat-plate and beneath and innuediately adjacent thework when moved for- .wa-rd, means to operate said devices autosaid mechanism, and means directly engaged and actuated by said mechanism -to move theclamping and cutting devices bodily holding the under threads.

11. In a sewing-machine provided with stitch-forming mechanism, in combinatlon, mechanism-for enim c-ose to'the work, and clamping and thatthefixiidlgetters Patent should be [sit-11in] clamping and, cutting mechanism, said neansincluding a longitudinally movable controller moved in one direction .by engagement with the stitch-formin mechan- 1sm, a--sprin to move it opposite y, a cam-- plate movab c with thecontroller, and operating connections between said canrplate- 'and the clamping and cutting members.

12. In a sewing-machine provided with bodily movable stitch-forming mechanism,

in combination, a-swingin carrier, thread? clamping and cuttmg devices mounted threads, and means movable with. and also .45 thereon and located beneath the worklposirela'ti\-'el v to the carrier and governed -bybodily movement of the stitch-forming mechanism to effect openin and closing movement of the movable cl ampin'g mem- I her and the blade.

In testimony -whereof,-I have signed my 'name to this'spe'cification, in the presence of two. subscribing witnesses. I v

JOHN KIEVIGZ.

Witnesses: i

' THOMAS J. CARTY, Wu. J MCLAUGHLIN.

@n is hereby certified that in Letters a en No. 952,010, granted March 15,1910, upon the application of John Kiewicz, of Hyde Bark, Massachusetts, for an improvement in ThreaidCuttini; ind Clamping Mechanism for Sewing-.ltlachihes, an error appearsinthe printed specification requiring correction as follows; Page 5,

line 14., after the i compoo nd ivord throat-plate-. a comma should be inserted; 91nd read with this-correction therein that the" same may conform to the record of the case in'the Patent Oflice'. Signed and'sealedthisbth day of April, 1910. r i

o. o; nineties, Acting Cmmnissioner of Patents.

by movement'ofthe stitch-forming niech- .the' upper and un er threads independently away from operative position while still.

bodily reciprocat ng and cutting members for the reception 'of-l and-to effect unlocking of the controller after completion of -.the.butto n-hole, and 'sprin and .t lore-by efi'ect clamping and cutting of 'the threads.

'niatieally, controlled by bodily movement of' -{3otraction in Letters "Patent No. 952,010.

the threads, means to retract the controller anism' during the stitching of abutton-hole .to return the unlocked controller 10. In n button-hole stitching mchine ,rov'lde'd with bodily movable mechanism lncluding a throat-plate, to stitch a buttonhole and move the work forward after comletion of the button-hole, devices located eneath the 'workoosit-ion tov clamp and out of the throat-plate and beneath and innuediately adjacent thework when moved for- .wa-rd, means to operate said devices autosaid mechanism, and means directly engaged and actuated by said mechanism -to move theclamping and cutting devices bodily holding the under threads.

11. In a sewing-machine provided with stitch-forming mechanism, in combinatlon, mechanism-for enim c-ose to'the work, and clamping and thatthefixiidlgetters Patent should be [sit-11in] clamping and, cutting mechanism, said neansincluding a longitudinally movable controller moved in one direction .by engagement with the stitch-formin mechan- 1sm, a--sprin to move it opposite y, a cam-- plate movab c with thecontroller, and operating connections between said canrplate- 'and the clamping and cutting members.

12. In a sewing-machine provided with bodily movable stitch-forming mechanism,

in combination, a-swingin carrier, thread? clamping and cuttmg devices mounted threads, and means movable with. and also .45 thereon and located beneath the worklposirela'ti\-'el v to the carrier and governed -bybodily movement of the stitch-forming mechanism to effect openin and closing movement of the movable cl ampin'g mem- I her and the blade.

In testimony -whereof,-I have signed my 'name to this'spe'cification, in the presence of two. subscribing witnesses. I v

JOHN KIEVIGZ.

Witnesses: i

' THOMAS J. CARTY, Wu. J MCLAUGHLIN.

@n is hereby certified that in Letters a en No. 952,010, granted March 15,1910, upon the application of John Kiewicz, of Hyde Bark, Massachusetts, for an improvement in ThreaidCuttini; ind Clamping Mechanism for Sewing-.ltlachihes, an error appearsinthe printed specification requiring correction as follows; Page 5, line 14., after the i compoo nd ivord throat-plate-. a comma should be inserted; 91nd read with this-correction therein that the" same may conform to the record of the case in'the Patent Oflice'. Signed and'sealedthisbth day of April, 1910. r i

o. o; nineties, Acting Cmmnissioner of Patents.

Correction in Letters Patent No. 952,010.

It is hereby certified that in Letters Patent No. 952,010, granted March 15, 1910,

upon the application of John Kiewicz, of Hyde Park, Massachusetts, for an improvement in 'lhreadCutting and Clamping Mechanism for Sewing-Machines," an error appears in the printed specification requiring correction as fOllOWsI Page 5,

line H, after the compound word thr0atpiate a comma should he inserted; and

that thewnid Letters Patent should he rend with this correction therein that the same may conform to the record of the case in the Patent ()flice.

Signed and sealed this 5th day of April. A. 1).. 1910.

[sun] C. (J. BILLINGS,

i 1m? Commzlrm'nner of Patents. 

